Babbott,
I think I speak for all of the others that posted before I got here when I say first and foremost... Welcome to "The Bolt".
That said, it sounds as though you have alot of family memories (history) with this old truck.
I can't tell you how many times, I've heard:
"I (or insert my Dad, Grandpa, Uncle so and so, or ?) had one just like that, sure wish I'd never gotten rid of it!"
I can for sure tell you I've NEVER heard anyone say, "I'm so glad I got rid of that old truck."
I do believe Fumblin makes a good point... I'd also suggest that you drive that truck around for a week or two before deciding you want it as a daily driver. It won't be anything like the new one you're considering.
Good Luck.